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公开(公告)号：US2124923A
公开(公告)日：1938-07-26
申请号：US12586737
申请日：1937-02-15
Applicant: KELZEY HAYES WHEEL COMPANY
Inventor： LE JEUNE FRANK H
IPC: B21D22/02
CPC classification number: B21D22/02 , Y10T29/49504
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